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In vitro evaluation of Datura innoxia (thorn-apple) for potential antibacterial activity

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Abstract

Various parts of Datura innoxia were examined for potential antibacterial activity by preparing their crude aqueous and organic extracts against Gram-negative bacteria (Escherichia coli and Salmonella typhi) and Gram-positive bacteria (Bacillus cereus, Bacillus subtilis and Staphylococcus aureus). The results of agar well diffusion assay indicated that the pattern of inhibition depends largely upon the plant part, solvent used for extraction and the organism tested. Extracts prepared from leaves were shown to have better efficacy than stem and root extracts. Organic extracts provided potent antibacterial activity as compared to aqueous extracts. Among all the extracts, methanolic extract was found most active against almost all the bacterial species tested. Gram-positive bacteria were found most sensitive as compared to Gram-negative bacteria. Staphylococcus aureus was signifi cantly inhibited by almost all the extracts even at very low MIC followed by other Gram-positives. For Escherichia coli (a Gram-negative bacterium), the end point was not reached for ethyl acetate extract while it was very high for other extracts. The study promises an interesting future for designing a potentially active antibacterial agent from Datura innoxia.

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Authors and Affiliations

  1. Department of Botany and Microbiology, Gurukul Kangri University, Hardwar-249 404, Uttarakhand, India

    P. Kaushik & Pankaj Goyal

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  1. P. Kaushik
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  2. Pankaj Goyal
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Kaushik, P., Goyal, P. In vitro evaluation of Datura innoxia (thorn-apple) for potential antibacterial activity. Indian J Microbiol 48, 353–357 (2008). https://doi.org/10.1007/s12088-008-0020-7

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  • DOI: https://doi.org/10.1007/s12088-008-0020-7

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